Staging Environment: Content and features may be unstable or change without notice.
Search for vulnerabilities
Vulnerability details: VCID-51jb-xry5-5qc2
Vulnerability ID VCID-51jb-xry5-5qc2
Aliases CVE-2026-31872
GHSA-r2m8-pxm9-9c4g
Summary Parse Server has a protected fields bypass via dot-notation in query and sort The `protectedFields` class-level permission (CLP) can be bypassed using dot-notation in query WHERE clauses and sort parameters. An attacker can use dot-notation to query or sort by sub-fields of a protected field, enabling a binary oracle attack to enumerate protected field values. This affects both MongoDB and PostgreSQL deployments.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-284 Improper Access Control
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00049 https://api.first.org/data/v1/epss?cve=CVE-2026-31872
epss 0.00049 https://api.first.org/data/v1/epss?cve=CVE-2026-31872
epss 0.00049 https://api.first.org/data/v1/epss?cve=CVE-2026-31872
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-r2m8-pxm9-9c4g
cvssv4 8.7 https://github.com/parse-community/parse-server
generic_textual HIGH https://github.com/parse-community/parse-server
cvssv4 8.7 https://github.com/parse-community/parse-server/releases/tag/8.6.32
generic_textual HIGH https://github.com/parse-community/parse-server/releases/tag/8.6.32
ssvc Track https://github.com/parse-community/parse-server/releases/tag/8.6.32
cvssv4 8.7 https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.6
generic_textual HIGH https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.6
ssvc Track https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.6
cvssv3.1_qr HIGH https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g
cvssv4 8.7 https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g
generic_textual HIGH https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g
ssvc Track https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g
cvssv4 8.7 https://nvd.nist.gov/vuln/detail/CVE-2026-31872
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2026-31872
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-31872
https://github.com/parse-community/parse-server
https://github.com/parse-community/parse-server/releases/tag/8.6.32
https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.6
CVE-2026-31872 https://nvd.nist.gov/vuln/detail/CVE-2026-31872
GHSA-r2m8-pxm9-9c4g https://github.com/advisories/GHSA-r2m8-pxm9-9c4g
GHSA-r2m8-pxm9-9c4g https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g
No exploits are available.
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/releases/tag/8.6.32
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-12T20:09:09Z/ Found at https://github.com/parse-community/parse-server/releases/tag/8.6.32
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.6
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-12T20:09:09Z/ Found at https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.6
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-12T20:09:09Z/ Found at https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxm9-9c4g
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2026-31872
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.15585
EPSS Score 0.00049
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:51:41.738600+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/npm/parse-server/CVE-2026-31872.yml 38.6.0